While I was just reading a book ,she came into my room.主句是什么?

I knew it was rea I was just还是I just was i was just leaving my office_________ the telephong began to ring.when还是while While I was just reading a book ,she came into my room.主句是什么? ()Yesterday morning I was just about to leave ___ to telephone rang.A when B while yesterday i was just to go out ______ someone telephoned me when while as that I was just looking out of the window ______ Mr.Zhao called me.（when/while） I was just looking out of the window（ ）Mr.Zhao called me.（when /while） i was just lee I was just helping .I was just overwelming I was just coming to see you ( ) I ran into Wilson.A when B while C if D as. I was just looking out of the window（ ）Mr.Zhao called me.（when /while） I was just looking out of the window（ ）Mr.Zhao called me.（when /while） while as when just as all morning的用法i was saying that you want to do这句话对不对 yesterday i was just about to go out -- someone telephoned me A,When B,while c,as 选哪个,为什么 my wife is cooking while i was working in the garden改错just as i was opening the door the telephone rung While I was still while I still love,ok? I　love　you　for　my　life　past.Nothing　can't　be　figured　out.The　past　just　can't　be　rea